CN214845079U - Explosion-proof combustible gas detector - Google Patents
Explosion-proof combustible gas detector Download PDFInfo
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- CN214845079U CN214845079U CN202120012958.8U CN202120012958U CN214845079U CN 214845079 U CN214845079 U CN 214845079U CN 202120012958 U CN202120012958 U CN 202120012958U CN 214845079 U CN214845079 U CN 214845079U
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Abstract
An explosion-proof combustible gas detector relates to the field of combustible gas detectors and comprises a detector body, an explosion-proof shell is arranged outside the detector body, a fixed part is arranged at the bottom of the explosion-proof shell, an air inlet part is arranged on the side wall of the explosion-proof shell and is connected with the detector body, an anti-corrosion layer is arranged on the outermost layer of the explosion-proof shell, a metal plate layer is arranged on the lower side of the anti-corrosion layer, a heat-insulating layer is arranged on the lower side of the metal plate layer, a flame-retardant layer is arranged on the lower side of the heat-insulating layer, the air inlet part comprises an air inlet pipe, a gas flow monitoring device is fixedly arranged on the inner wall of the air inlet pipe, the bottom of the air inlet pipe is connected with a casing, a dustproof filter screen is arranged at the bottom of the casing, the anti-corrosion layer on the surface layer of the explosion-proof shell can effectively prolong the service life of equipment in the environment with high humidity and high temperature, and the gas flow detection device can block the dustproof filter screen when dust and oil stain block the dustproof filter screen, play the suggestion effect, can effectually prevent that the filter screen from blockking up the detection result that influences equipment.
Description
Technical Field
The utility model relates to a combustible gas detection instrument field, concretely relates to explosion-proof combustible gas detection instrument.
Background
A combustible gas detector is a detector that responds to the concentration of a single or multiple combustible gases. The combustible gas detector has two types, namely a catalytic type and an infrared optical type. The catalytic combustible gas detector measures the concentration of combustible gas by using the resistance change of a refractory metal platinum wire after being heated. When combustible gas enters the detector, an oxidation reaction (flameless combustion) is caused on the surface of the platinum wire, and the generated heat raises the temperature of the platinum wire, so that the resistivity of the platinum wire changes. The infrared optical type is to detect the hydrocarbon combustible gas in the field environment by using an infrared sensor through the absorption principle of an infrared light source.
At present, urban gas is widely applied, and has many potential safety hazards while bringing convenience to life and work of people. The potential safety hazards are mainly expressed in that the possibility of leakage of fuel gas exists in the using process, so that the arrangement of the combustible gas detector in the using environment of the combustible gas is very important, the explosion prevention of the conventional combustible gas detector is mainly realized by arranging an explosion-proof shell on the combustible gas detector, but under the environment of high humidity and high temperature in a kitchen, the shell of the combustible gas detector is corroded in long-term use, so that the explosion prevention effect is influenced; the dustproof filter screen positioned at the air inlet is also easy to adhere oil stains to cause the blockage of the air inlet, and the normal use of the combustible gas detector is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide explosion-proof combustible gas detection instrument to solve the problem that mentions in the above-mentioned background art, the utility model discloses simple to operate, simple structure through installing gas flow monitoring devices in the air inlet, just send the police dispatch newspaper when dustproof filter screen is blockked up by the greasy dirt, through increasing anti-corrosion coating on explosion-proof shell for the shell is difficult by corroding when using, and the practicality is strong, has great market spreading value.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an explosion-proof combustible gas detector comprises a detector body 1, an explosion-proof shell 2, a fixing part 3 and an air inlet part 4, an explosion-proof shell 2 is arranged outside the detecting instrument body 1, three fixing parts 3 are equidistantly arranged at the bottom of the explosion-proof shell 2, an air inlet part 4 is arranged on the side wall of the explosion-proof shell 2 in a penetrating way, the air inlet part 4 is connected with the detecting instrument body 1, the outermost layer of the explosion-proof shell 2 is provided with an anti-corrosion layer 21, the lower side of the anti-corrosion layer 21 is provided with a metal plate layer 22, the lower side of the metal plate layer 22 is provided with a heat-insulating layer 23, the lower side of the heat-insulating layer 23 is provided with a flame-retardant layer 24, air inlet portion 4 contains intake pipe 41, gas flow monitoring device 42, cover 43, dustproof filter screen 44, and the fixed gas flow monitoring device 42 that is provided with on the inner wall of intake pipe 41, the bottom is connected with cover 43, and the bottom of cover 43 is inlayed and is provided with dustproof filter screen 44.
And an auxiliary locking lug 5 is arranged at the top of the explosion-proof shell 2.
The anti-corrosion layer 21 is formed by spraying an epoxy resin material.
The bottom end outer wall of intake pipe 41 and the inner wall of cover 43 all are provided with screw thread 6, and intake pipe 41 passes through screw thread 6 with cover 43 and is connected.
The gas flow monitoring device 42 comprises a display 7 and a gas flowmeter 8, wherein the gas flowmeter 8 is a gas vortex street flowmeter.
The utility model discloses a theory of operation: the staff can install the explosion-proof combustible gas detecting instrument in the kitchen according to the actual use demand, when installing the utility model, the staff should drill out the fixed hole matching with the fixed part 3 on the wall body first, then fix the equipment on the wall body through the bolt and electrify, thus completing the installation, in the working process of the equipment, the air can enter through the air inlet pipe 41 and contact with the equipment body, the equipment body detects the combustible gas content in the air, in the process, the air firstly passes through the dustproof filter screen 44 positioned under the air inlet pipe 41, the dustproof filter screen 44 plays the dustproof role, then passes through the gas flow detection device positioned in the air inlet pipe 41, the gas flow detection device plays the role of measuring the gas flow velocity, finally contacts with the detecting instrument body 1, when the dust and oil stains are accumulated on the dustproof screen due to the long-time use of the equipment, the air flow entering the air inlet pipe 41 becomes small, the air flow detection device can give a prompt to remind a worker to clean or replace the filter screen, and only the casing 43 needs to be screwed out of the air inlet pipe 41 when the filter screen is replaced.
After the technical scheme is adopted, the utility model discloses beneficial effect does: the anticorrosive coating on the surface layer of the explosion-proof shell can effectively prolong the service life of the equipment in the environment with high temperature and large humidity in a kitchen, and the gas flow detection device can play a role in prompting when dust and oil stains block the dustproof filter screen, and can effectively prevent the filter screen from blocking the detection result influencing the equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic structural diagram of the explosion-proof housing 2 of the present invention.
Description of reference numerals: the gas flow monitor comprises a detector body 1, an explosion-proof shell 2, an anti-corrosion layer 21, a metal plate layer 22, a heat insulation layer 23, a flame-retardant layer 24, a fixing part 3, a gas inlet part 4, a gas inlet pipe 41, a gas flow monitoring device 42, a casing 43, a dustproof filter screen 44, a locking lug 5, threads 6, a display 7 and a gas flowmeter 8.
Detailed Description
Referring to fig. 1 to fig. 3, the technical solution adopted by the present embodiment is: it contains detection instrument body 1, explosion-proof shell 2, fixed part 3, inlet portion 4, the outside of detection instrument body 1 is provided with explosion-proof shell 2, and the bottom equidistance of explosion-proof shell 2 is provided with three fixed part 3, runs through on the lateral wall of explosion-proof shell 2 to be provided with inlet portion 4, and inlet portion 4 is connected with detection instrument body 1, explosion-proof shell 2 is outmost to be provided with anti-corrosion layer 21, and anti-corrosion layer 21's downside is provided with sheet metal layer 22, and sheet metal layer 22's downside is provided with insulating layer 23, and the downside of insulating layer 23 is provided with fire-retardant layer 24, inlet portion 4 contains intake pipe 41, gas flow monitoring devices 42, cover 43, dustproof filter screen 44, and the fixed gas flow monitoring devices 42 that is provided with on the inner wall of intake pipe 41, the bottom is connected with cover 43, and the bottom of cover 43 is provided with inlays dustproof filter screen 44.
Furthermore, the top of the explosion-proof housing 2 is provided with an auxiliary locking bump 5, and the auxiliary locking bump 5 assists the worker to lock the explosion-proof housing 2.
Further, the anti-corrosion layer 21 is formed by spraying an epoxy resin material. The chemical resistance is excellent, especially the alkali resistance. Has better heat resistance and electrical insulation.
Further, the outer wall of the bottom end of the air inlet pipe 41 and the inner wall of the casing 43 are both provided with threads 6, and the air inlet pipe 41 is connected with the casing 43 through the threads 6.
Further, the gas flow monitoring device 42 comprises a display 7 and a gas flowmeter 8, the gas flowmeter 8 is a gas vortex flowmeter, and the gas vortex flowmeter is characterized by small pressure loss, wide measuring range and high precision, and is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity and the like when measuring the volume flow of the working condition.
The utility model discloses a theory of operation: the staff can install the explosion-proof combustible gas detecting instrument in the kitchen according to the actual use demand, when installing the utility model, the staff should drill out the fixed hole matching with the fixed part 3 on the wall body first, then fix the equipment on the wall body through the bolt and electrify, thus completing the installation, in the working process of the equipment, the air can enter through the air inlet pipe 41 and contact with the equipment body, the equipment body detects the combustible gas content in the air, in the process, the air firstly passes through the dustproof filter screen 44 positioned under the air inlet pipe 41, the dustproof filter screen 44 plays the dustproof role, then passes through the gas flow detection device positioned in the air inlet pipe 41, the gas flow detection device plays the role of measuring the gas flow velocity, finally contacts with the detecting instrument body 1, when the dust and oil stains are accumulated on the dustproof screen due to the long-time use of the equipment, the air flow entering the air inlet pipe 41 becomes small, the air flow detection device can give a prompt to remind a worker to clean or replace the filter screen, and only the casing 43 needs to be screwed out of the air inlet pipe 41 when the filter screen is replaced.
After the technical scheme is adopted, the utility model discloses beneficial effect does: the anticorrosive coating on the surface layer of the explosion-proof shell can effectively prolong the service life of the equipment in the environment with high temperature and large humidity in a kitchen, and the gas flow detection device can play a role in prompting when dust and oil stains block the dustproof filter screen, and can effectively prevent the filter screen from blocking the detection result influencing the equipment.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. Explosion-proof combustible gas detector, its characterized in that: the gas flow detector comprises a detector body (1), an explosion-proof shell (2), fixing parts (3) and a gas inlet part (4), wherein the explosion-proof shell (2) is arranged outside the detector body (1), the three fixing parts (3) are equidistantly arranged at the bottom of the explosion-proof shell (2), the gas inlet part (4) is arranged on the side wall of the explosion-proof shell (2) in a penetrating manner, the gas inlet part (4) is connected with the detector body (1), an anti-corrosion layer (21) is arranged on the outermost layer of the explosion-proof shell (2), a metal plate layer (22) is arranged on the lower side of the anti-corrosion layer (21), a heat-insulating layer (23) is arranged on the lower side of the metal plate layer (22), a flame-retardant layer (24) is arranged on the lower side of the heat-insulating layer (23), the gas inlet part (4) comprises a gas inlet pipe (41), a gas flow monitoring device (42), a casing (43) and a dustproof filter screen (44), and a gas flow monitoring device (42) is fixedly arranged on the inner wall of the gas inlet pipe (41), the bottom is connected with a casing (43), and the bottom of the casing (43) is embedded with a dustproof filter screen (44).
2. The explosion-proof combustible gas detector according to claim 1, characterized in that: and an auxiliary locking lug (5) is arranged at the top of the explosion-proof shell (2).
3. The explosion-proof combustible gas detector according to claim 1, characterized in that: the bottom outer wall of intake pipe (41) and the inner wall of cover shell (43) all are provided with screw thread (6), and intake pipe (41) are connected through screw thread (6) with cover shell (43).
4. The explosion-proof combustible gas detector according to claim 1, characterized in that: the gas flow monitoring device (42) comprises a display (7) and a gas flowmeter (8), wherein the gas flowmeter (8) is a gas vortex shedding flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120012958.8U CN214845079U (en) | 2021-01-05 | 2021-01-05 | Explosion-proof combustible gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120012958.8U CN214845079U (en) | 2021-01-05 | 2021-01-05 | Explosion-proof combustible gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214845079U true CN214845079U (en) | 2021-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120012958.8U Active CN214845079U (en) | 2021-01-05 | 2021-01-05 | Explosion-proof combustible gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214845079U (en) |
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2021
- 2021-01-05 CN CN202120012958.8U patent/CN214845079U/en active Active
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